Ionia Weather Forecast

    • 29
    • 53

    Rain Showers

    • 23
    • 36

    Mostly Cloudy

    • 30
    • 45

    Mostly Cloudy

    • 31
    • 44

    Slight Chance Rain/Snow

    • 27
    • 56

    Rain/Snow Likely

    • 19
    • 34

    Partly Sunny

Today 22 Mar Ontario

A chance of Showers Early, then Showers from late morning on. Highs in the mid 50s. Southwest Winds 10 to 15 Mph, becoming northwest 5 to 10 Mph. Chance of rain 90 percent.

Tonight 22 Mar Ontario

Cloudy. A chance of rain Showers, drizzle and snow Showers in the Evening, then a chance of freezing drizzle and snow Showers overnight. Lows in the upper 20s. North Winds around 10 Mph. Chance of precipitation 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ionia Temperature Statistics

March Temperature

Rochester, Greater Rochester International Airport (15.5 miles)

  • Lowest 2 March, 2026

    10.7 °F

  • Average March

    38.9 °F

  • Highest 7 March, 2026

    73 °F

Climate (2021–Present)

Rochester, Greater Rochester International Airport (15.5 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.5 °F
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